Finding the Fourth Proportional to 116,185.72, 160,330.62 and 65,875

Step by Step Solution

1. Step 1: Write the proportion equation
   116,185.72 : 160,330.62 = 65,875 : x
2. Step 2: Convert to fraction form
   116,185.72/160,330.62 = 65,875/x
3. Step 3: Cross multiply
   116,185.72x = 160,330.62 × 65,875
4. Step 4: Simplify right side
   116,185.72x = 10,561,779,592.50
5. Step 5: Solve for x
   x = 10,561,779,592.50/116,185.72
6. Step 6: Final answer
   x = 90,904.28